一种测试嵌入式Linux调度延迟的方法

A Test Method of Embedded Linux Scheduler Latency

介绍了Linux的调度策略及其调度延迟改进策略，结合Intel X86处理器特点提出了一种测试Linux调度延迟的方法。在阐述该测试方法的实现原理的同时对关键部分进行了伪代码说明。最后，针对不同的内核版本进行测试，验证了Linux的抢占补丁和低延时补丁的实现原理和结果。

Strategies and solutions of the embedded Linux's scheduler are analyzed. Based on Intel X86 CPUs architecture, a test method of Linux scheduler latency is introduced. Its principle and implementation are interpreted in detail. At last, experiments of this method prove its availability and also validate the preemptible patch and low-latency patchs theory.